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What is wrong with the statement ''the atoms of element X are isoelectronic with the atoms of element Y?
The statement is incorrect because isoelectronic means having the same number of electrons, but atoms of different elements have different numbers of protons and electrons. Elements X and Y can have the same number of electrons in their ions, but not in their neutral atoms.
Suppose an element x is in group 2a and an element y is in group 7a the empirical formula for the compound between x and y?
The empirical formula for the compound between x and y would be xy. Since x is in group 2a and y is in group 7a, their charges would be 2+ and 7-, respectively. To balance the charges, one x would combine with three y to form the compound with the formula XY3.
When chemical x is added to a certain liquid the chemical breaks into substances y and z y and z cant be broken down any further does that mean x is an element?
no, it proves that x is a compound.
If the electronegativity difference between elements X and Y is 2.1 the bond between the elements X-Y is?
The bond between elements X and Y would be considered as polar covalent since the electronegativity difference is 2.1. In a polar covalent bond, the shared electrons are drawn more towards the more electronegative element, resulting in a partial positive charge on the less electronegative element and a partial negative charge on the more electronegative element.
If X is the set of all blood groups of human beings and Y is the set of all human beings then the association that associates a blood group to a person having that blood group is not a function from?
If X is the set of all blood groups of human beings and Y is the set of all human beings then the association that associates a blood group to a person having that blood group is not a function from X to Y .
How do you know if the equation defines a function?
Suppose the function, y = f(x) maps elements from the domain X to the range Y. Thenfor every element x, in X, there must be some element y in Y, andfor an element y, in Y, there can be at most one x in X.
Show that set R of real numbers is a group with respect to multiplication?
Closure: If x and y are any two elements of Rthen x*y is an element of R.Associativity: For and x, y and z in R, x*(y*z) = (x*y)*z and so, without ambiguity, this may be written as x*y*z.Identity element: There exists an element 1, in R, such that for every element x in R, 1*x = x*1 = x.Inverse element: For every x in R, there exists an element y in R such that x*y = y*x = 1. y is called the inverse of x and is denoted by x^-1.The above 4 properties determine a group.
What is the additive inverse property?
An element x, of a set S has an additive inverse if there exists an element y, also in S, such that x + y = y + x = 0, the additive identity.
What are the properties of multiplications with their meanings?
The properties of multiplication need to be considered in the context of the set over which this operation is defined.For most number systems, multiplications isCommutative: x*y = y*x for all x and yAssociative: (x*y)*z = x*(y*z) so that , without ambiguity the expression can be written as x*y*z for all x, y and zDistributive property over addition or subtraction:x*(y+z) = x*y + x*z for all x, y and zIdentity Element: There exists a unique element, denoted by 1, such that1*x = x = x*1 for all xZero element: there is an element 0, such that x*0 = 0 for all x.In some sets, an element x also has a multiplicative inverse, denoted by x-1 such that x*x-1 = x-1*x = 1 (the identity).
What are the principles or properties of number under addition and multiplication?
The properties are:Commutativity: Both addition and multiplication are commutative. This means that the order of the operands does not matter: that is x # y = y # x where # represents either operation.Associativity: Both are associative. That is, the order of the operation does not matter. Thus (x # y) # z = x # (y # z) so that either can be written as x # y # z without ambiguity.Identity element: There are identity elements for both operations. This means that for each of the two operations there is a unique element, i such that for any element x,x # i = x = i # x.The additive identity is 0, the multiplicative identity is 1.Inverse element: For each element x there is an element x' such thatx # x' = i = x' # x. In the case of addition, x' = -x where for multiplication, x' = 1/x.Distributivity: Multiplication is ditributive over addition. This means thata*(x + y) = a*x + a*y
Enumerate the properties of real numbers?
The real numbers form a field. This is a set of numbers with two [binary] operations defined on it: addition (usually denoted by +) and multiplication (usually denoted by *) such that:the set is closed under both operations. That is, for any elements x and y in the set, x + y and x * y belongs to the set.the operations are commutative. That is, for all x and y in the set, x + y = y + x, and x * y = y * x.multiplication is distributive over addition. That is, for any three elements x, y and z in the set, x*(y + z) = x*y + x*zthe set contains identity elements under both operations. That is, for addition, there is an element, usually denoted by 0, such that x + 0 = x = 0 + x for all x in the set. For multiplication, there is an element, usually denoted by 1, such that y *1 = y = 1 * y for all y in the set.for every x in the set there is an additive inversewhich belongs to the set, and for every non-zero element x there is a multiplicative inverse which belongs to the set. That is for every x, there is an element denoted by (-x) such that x + (-x) = 0, and for every non-zero element y in the set, there is an element y-1 such that y*y-1 = 1.
What happens when the line y x is changed to y x 2?
If you mean: y = x and y = x+2 then the lines are then parallel to each
Find the domain and range of f of x equals x squared minus 4?
D = {x [element of reals]}R = {y [element of reals]|y >= 4}
How do you get Pseudo code for largest element of an array?
Pseudocode: if x > y then return x else return y Actual code (C++): return( x>y ? x : y );
What is the definition for identity properties for addition and multiplication?
The identity property for addition is that there exists an element of the set, usually denoted by 0, such that for any element, X, in the set, X + 0 = X = 0 + X Similarly, the multiplicative identity, denoted by 1, is an element such that for any member, Y, of the set, Y * 1 = Y = 1 * Y
How is the identity property of addition related to the additive inverse property?
If a set, S, has an additive identity, O, then for every element x, of S, here exists an element y (also in S) such that x + y = O = y + x. O is denoted by 0, and y by -x.
IN a hyberbola what happens to x as y get larger?
As y gets, smaller, x gets larger.
